E85 Vs. Premium Gas eFlexFuel Equipped 2015 Honda Civic Si 2.4L
In this episode of Fuel Wars! we strap an eFlex equipped 2015 Honda Civic Si 2.4L to the dyno to compare E85 Vs Premium gas performance. No adjustments or user inputs were made, just switching fuel and letting the eFlex kit do its thing.
October 1, 2025
